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Optimization of laser surface melt-hardening on gray and nodular iron

Author(s): Janez Grum, Roman Sturm & Pavle Zerovnik Abstract: Laser surface melt-hardening has recently been successfully introduced into industry to improve the wear resistance of different parts made from gray and nodular irons. A characteristics of this procedure is rapid heating of a thin surface layer of the workpiece material above the melting point temperature. After the completion of heat treatment, a structure-modified surface layer is obtained consisting of the remelted and hardened layer. Experimental results of the study of laser surface melt-hardening process have confirmed that the procedure is suitable also for low-power CQ^ laser sources to increase the depth of the modified layer. Because of remarkable repeatability of the characteristics of the modified layer, it is possible ... Pages: 10 Size: 921 kb Paper DOI: 10.2495/SURF970251

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Download the Full Article This article is part of the WIT OpenView scheme and you can download the full text Adobe PDF article for FREE by clicking the 'Openview' icon to the right.